Tags: Crustacean.
Synalpheus regalis is a species of snapping shrimp that commonly live in sponges in the coral reefs along the tropical West Atlantic. They form a prominent component of the diverse marine cryptofauna of the region. For the span of their entire lives they live in the internal canals of the host sponge using it as a food resource and shelter. It has been shown that colonies contain over 300 individuals but only one reproductive female.